Wifi Connections

I use Internet Download Manager to download my movies
At the moment I’m happy with the software, I love it..

But I am starting to think..
Can I use one WiFi connection to download my movies from and another to browse the internet?
Something like a dual SIM phone?
Is it possible to perform something like that on a single Desktop PC or Laptop, if so.. What are the hardwares and softwares I need? For both Desktop PC and Laptop.